Cylindrical positive electrode.



- E. 0. SCHNEIDER. GYLI'NDRIOAL POSITIVE ELECTRODE. API'LIUATION FILED SEPT.1, 1908.

924,503. Patented June 8, 190 9.

way of example.

ERNST OTTO SCHNEIDER estraint rich OF DRESDEN, GERMANY.

CYLINDRICAL POSITIVE ELECTRODE.

No. 924,503] Specification of Letters Patent. Patented June 8, 1909.

Application filed September 1,1908. Serial No. 451,257.

To all whom it may concern:

Be it known that I, ERNs'r OTTO SCHNEI- DER, a subject of the King of Saxony, and resident of Groebielstrasse 15, Dresden, Kingdom of Saxony, German Empire, have invented a new and useful Improvement in Cylindrical Positive Electrodes, of which the following is a specification.

The invention relates to a cylindrical positive electrode and particularly to an electrode which is-characterized by consisting of a number of rings being connected by longitudinal bars and being arranged in appropriate distances above each other. These rings may either be flat or have a concave or mold like sha e.

The hollow ody built up as above stated and forming the trestle or support for the active material is cast in one piece thus rendering its manufacture simple and very cheap. A principal advantage of the new electrode consists in the fact that the same has, although very light in weight, a greatly increased capacity in comparison with all known electrodes.

The structure further provides for greatly increasing the capacity in that it provides an interior hollow cvlinder free from obstruction in which, it desired, a cylindrical negative electrode may be placed, and it is obvious that a second negative electrode might be laced around the outside of the electrode if so desired, while substantiallythe entire inner and outer faces of the active material-are exposed to the electrolyte.

Furthermore the electrode according to the invention shows a great resistance and durability and its parts will not be liable to warp or bend nor will the filling mass be apt to fall out which would eflect a fatal short circuit. The electrode is particularly suitable for batteries used in connection with small electric-light plants.

On the accompanying drawing the else: the invention is shown by Figure 1 is a vertical section according to line AB in Fig, 2, and Fig. 2 is a plan view of the electrode. f

The rings 1), having in theconstruction shown, a concave or'molddike shape, are held at an appropriate distanceone abovetrode according to another andin a vertical position by the longitudinal bars a, four of which, by way of example, are shown in the drawing and one of which is extended to form the exit pole for the current. I

The rings 1) are provided with the small ribs 0 which effect the holding of the filling and prevent the same from falling out.

The number of longitudinal bars a, of rings 5 and of ribs 0 on the latter may naturally be varied at liberty.

What I claim is: 1.;A cylindrical positive electrode for use in secondary batteries comprising rings arranged at suitable distances above one an other, radial vertical webs connecting the rings and terminatin at their inner edges flush with the inner e ges of the rin s, forming between the Webs and adjacent rings cells for the active material, leaving an interior hollow cylinder free from obstruction for the insertion of a cylindrical negative electrode and at the same time exposing substantially the entire inner and outer faces of the active material to the electrolyte while maintaining position.

2. A cylindrical positive electrode for use in secondary batteries comprising rings arranged at suitable distances apart one above another, vertical radial webs connectingthe rings atin tervals and forming together with the rings cells for the reception of the active material, one of the walls of each cell being :provided with a radial rib for securing the active material in position in the cell, the said webs terminating flush with the inner circular walls of the rings, whereby a central cylindrical opening is obtained for the reception of a negative electrode While the inner and outer faces of the active material are exposed throu hout substantially their entire extent to t e action of the electrolyte.

. 3. A cylindrical positive electrode for use vin secondary batteries comprising dish or mold shaped'rings arranged at'suitable distances apart from each other, vertical radial webs connecting the dish or mold shaped rin s at intervals and forming together with suc rings inwardly tapered segmental cells or compartments for'the reception of the acmass inserted or pressed between the rings the rings and the active material securely in' tire material, the said Webs terminating In testimony, tlietlclaiin the ioregoingus flush with the inner'circular walls ofthe my invention, 1 have signed my nknne in 10 dish or mold shaped rings, whereby a cylinl presence of two Witnesses, this twentieth (lay drical opening is obtained for the reception I of August, 1908.-

5 of a negative electrode, while the inner and ERNST ()TTO SUILYEIIHCH.

outer faces of the active material are exposed \Vitnesses: throughout substantially their entire extent 5 PAUL ARRAS,

to the action 01' the electrolyte. CLARE Smox. 

